The second season of Zoo, CBS’ bonkers thriller about a global animal uprising, premiered last night with a double episode. Not only did this mean more globe-trotting for our fearless team (who now have a super-swanky plane), but a “phase two mutation” may be out there, making the animals crazier than ever.

And it’s not just lions, tigers, and bears who’re upending the previously-established laws of the jungle. There’s another animal that’s started to mutate—and if things keep going the way they did in episode one, Zoo may soon resemble The Walking Dead more than When Animals Attack. (And if that’s the case... what’s the point?)